Cabinet of Ministers Regulations No. 42 in Riga 2009 January 13 (pr. 3. § 32) the provisions concerning the identification of underground water resources and quality criteria have been issued in accordance with the water management act article 5 the seventh and tenth parts 2 and 3 point i. General questions 1. determines: 1.1. identification of underground water resources;
1.2. procedure for the determination of the impact of anthropogenic activities on the underground ūdensobjekt;
1.3. the underground ūdensobjekt for classes and ground water of the good and bad chemical quality criteria.
2. Preparation of the river basin management plan (management plan) and a programme of activities to achieve the plan set apsaimn setting environmental quality objectives (hereinafter referred to as the environmental quality objectives), the Latvian environment, geology and Meteorology Agency (hereinafter Agency) acknowledges the underground water resources, study the impact of anthropogenic activities on the ground and assess ūdensobjekt underground ūdensobjekt quality and quantitative.
3. State and local government bodies upon request by the Agency, provide them with the information they need to navigate the underground water resources, determine the anthropogenic load and evaluate the quality of the underground ūdensobjekt and quantitative.
II. identification of underground water resources and determination of anthropogenic loads 4. the Agency shall prepare the underground water of the original characteristics of the object to determine the geological and hidroģeoloģisko conditions, limits, uses and relation with surface water or land ecosystems.
5. Preparing the underground ūdensobjekt the original characteristics, the agency uses the monitoring data and other data on hydrogeological conditions, soil characteristics, groundwater abstraction and discharge of waste water, as well as information on land use types in the relevant river basin district. Preparing the underground ūdensobjekt the original characteristics, determine: a geological borders ūdensobjekt 5.1 plan and cuts;
5.2. the geological, hidroģeoloģisko ūdensobjekt and hidrodinamisko conditions (such as groundwater flow direction of watersheds and water balance, an underground water basin natural or artificial recharge sources leak areas, protection against pollution, concealed from view, the General characteristics of layers in the territory, which will complement the underground water resources);
5.3. the aeration zone in the area; the underground ūdensobjekt
5.4. loads of anthropogenic impact on the General ground of ūdensobjekt (such as point and diffuse sources of pollution affecting the underground ūdensobjekt underground ūdensobjekt water use, groundwater level lowering or raising the artificial);
5.5. the underground ūdensobjekt, which are linked from those directly dependent surface water ecosystems or terrestrial ecosystems.
6. After the initial description prep work down the underground water objects, taking into account the groundwater horizon boundary plan and cut and their attraction to the surface ūdensobjekt.
7. the Agency shall establish an underground ūdensobjekt according to the following criteria: 7.1. underground geological structure of ūdensobjekt, and hydrodynamic conditions hydrogeological characteristics;
7.2. groundwater quality;
7.3. the anthropogenic influence on groundwater quantitative status and its chemical quality;
7.4. the underground water resources in the water supplies of the population;
7.5. the underground water connection with horizon surface ecosystems.
8. If the initial characteristics of underground ūdensobjekt, as well as assessment of anthropogenic activities results show that environmental quality objectives or measures to be necessary is a further breakdown of the underground ūdensobjekt, originally set to be distributed in underground ūdensobjekt apakšobjekto. The underground water of the subobject to be broken down into the following criteria: 8.1 ūdensobjekt parts, that the geologic structure of the hydrogeological and hydrodynamic characteristics of the circumstances differ from the characteristics of the rest of the underground ūdensobjekt;
8.2. ūdensobjekt of the parts found in the natural hidroķīmisk abnormalities;
8.3. ūdensobjekt parts, which are essential for water supply;
8.4. ūdensobjekt parts, in which experiencing intensive change due to anthropogenic activities.
9. Underground ūdensobjekt and subobject are stated on the relevant management plan. The Agency may change the distribution of underground ūdensobjekt when updated management plan.
10. on the basis of the results of the initial characteristics, the Agency identifies the underground ūdensobjekt or subobject that risk does not reach certain environmental quality objectives (hereinafter referred to as the risk of water). If necessary, the risk of ūdensobjekt prepare for their hydrogeological and geological conditions as well as anthropogenic load impact additional characteristics. Anthropogenic load impact additional characteristics determined all of the underground ūdensobjekt crossing the Latvian border with another Member of the European Union.
11. In preparing the risk of hydrological and geological ūdensobjekt of additional characteristics, the Agency clarified: 11.1. risk of geological structure of ūdensobjekt, water distribution, and the type of the horizon, as well as sprostslāņ;
11.2. characteristics of each filtering risk ūdensobjekt water or water horizon horizon complex, natural isolation from surface pollution as well as water replenishment and leak conditions;
11.3. concealed layer of the General characteristics of the territory, which will complement the underground water resources (for example, the thickness of the layers, concealed from view, porosity, permeability and absorption characteristics);
11.4. hydrogeological, risk stratification in one ūdensobjekt;
11.5. the extent of interactions between risk and hydrodynamic ūdensobjekt the associated surface waters and dependent terrestrial ecosystems;
11.6. groundwater flow direction and the exchange rate between the risk of ūdensobjekt and related surface and underground ūdensobjekt;
7.3. average calculations for one year will complement the subterranean water resources (uses ground water balance assessment and hidroģeoloģisko models);
11.8. groundwater chemical composition (indicate anthropogenic impact on the composition and concentration of the substance).
12. Preparing the anthropogenic load impact additional characteristics, the Agency collects the following information: 12.1. all water sampling sites that day more than average 10 cubic meters of underground water, or from which drinking water is obtained more than 50 people, as well as of the average annual quantity of water in each of these places;
12.2. groundwater chemical composition of natural background level (the concentration of a substance or chemical quality indicators defining the value of the underground ūdensobjekt, corresponding to human actions do not affect or very small affected conditions) the water used for the abstraction of underground ūdensobjekt for water and chemical quality;
12.3. all points of groundwater artificial supplements, as well as the injected water and chemical composition;
12.4. the ability to absorb pollutants and in soil decomposition (degradation) speed of ground water horizons, as well as land use types in the territory from which to replenish ground water resources;
12.5. actions that affect the underground water resources in the natural complementarity;
12.6. natural or artificial pollutants originating in the background level, including substances and ionic or pointer increased the background level resulting from the natural hydrogeological grounds, and this concentration change trends over a longer period of time.
13. on the basis of more characterization and assessment of anthropogenic activities, assessing the impact on the situation of ūdensobjekt surface water and associated terrestrial ecosystems, terrestrial ūdensobjekt the bottom control, flood protection, land drainage, as well as the development of the economic activities, the agency determined that the underground ūdensobjekt River basin management plan is applicable to water management law exceptions provided for in the environmental quality targets or objectives.
III. Underground ūdensobjekt classes, and the underground water quality criteria, the Agency assessed 14. underground water objects and subobject, comparing data about their condition with criteria that correspond to good or bad ground water chemical quality, as well as good or bad for groundwater quantitative status. In accordance with the assessment of all underground ūdensobjekt are divided into good quality class or poor quality class. If the quality of the underground ūdensobjekt by different criteria correspond to different quality classes, the underground ūdensobjekt the Agency is divided into a lower quality or quantitative position class.
15. Underground ūdensobjekt quantitative condition is assessed on the basis of the underground water level measurements, as well as using the underground water level of the card or the horizon complexes. On the basis of the monitoring and the results of the initial characteristics, each to determine the underground ūdensobjekt typical groundwater level fluctuations and seasonal trends are analysed, taking into account the average annual rainfall and other factors that affect the ground water level.
16. Underground ūdensobjekt quantitative condition is good, if it meets the following criteria: 16.1. data on ground water level underground in ūdensobjekt shows that the long term annual average observed groundwater abstraction exceeds the available ground water resources (defined as the difference between the observed over a long period underground ūdensobjekt the annual average recovery rate and the period of the observed annual flow rate) required for the water management act environmental quality objectives with this ūdensobjekt in surface waters to avoid such an essential waters ecological deterioration and significant damage to associated terrestrial ecosystems;
16.2. the anthropogenic cause of groundwater level changes do not interfere with achieving environmental quality objectives laid down by the underground related surface ūdensobjekto ūdensobjekt, does not impair the surface ūdensobjekt the ecological and chemical quality, and not significantly affect the terrestrial ecosystem, directly related to the underground ūdensobjekt;
16.3. groundwater level change caused by groundwater flow direction is temporary or permanent, only a limited area and not any sālsūdeņ or other intrusions, as well as no evidence of lasting and clearly detectable in groundwater flow reversal in the trend.
17. Underground ūdensobjekt quantitative condition is bad, if: 17.1. ūdensobjekt monitoring for the underground in the annual average groundwater level show that the ground water level is dropping and is not related to the amount of rainfall or other natural factors;
17.2. groundwater level changes of surface ūdensobjekt of the aggravated situation;
17.3. groundwater level change caused by groundwater flow direction is prolonged or permanent wide area and cause sālsūdeņ or other intrusions, as well as a sign of enduring and clearly detectable in groundwater flow reversal in the trend.
18. Underground chemical ūdensobjekt quality is good, if it meets the following criteria: 18.1. the chemical composition corresponds to the natural water chemical composition that is specific for a given ūdensobjekt, and monitoring the concentration of pollutants in any monitoring point exceed regulations on surface and ground water quality in certain environmental quality standards or risk the chemical composition of the underground ūdensobjekt do not exceed the environmental quality regulations set the threshold expressed as separate pollutants, groups of pollutants, or indicator of pollution concentration or value, which should not be exceeded in order to protect human health and the environment (hereinafter referred to as the threshold of pollutants);
18.2. in one or more monitoring points pollutant annual mean concentrations exceed the environmental quality standards or limit values of pollutants, but the underground ūdensobjekt assessment, taking into account the amount of contamination, it is established that: 18.2.1. pollutant concentration does not create a significant risk to the environment;
18.2.2. pollution is not significantly worsened by the use of ūdensobjekt to human needs;
18.3. occurs sālsūdeņ or other intrusions in the underground ūdensobjekt or other adverse changes;
18.4. the underground ūdensobjekt the chemical quality does not interfere with achieving environmental quality objectives with underground related surface ūdensobjekto ūdensobjekt, does not impair the surface ūdensobjekt the ecological and chemical quality, and not significantly affect the terrestrial ecosystems that are directly associated with the underworld and ūdensobjekt wetlands.
19. If the chemical quality of underground ūdensobjekt are classified as good under this rule 18.2. section, Ministry of the environment, to protect aquatic ecosystems, terrestrial ecosystems and human needs be undertaken on ground water, which depend on the object's part, shall take the necessary measures at the object, which is found in the monitoring of environmental quality standards or limit values of pollutants in excess.
20. Underground ūdensobjekt the chemical quality is poor, if the pollution or other anthropogenic load in water due to natural and found concentrations of pollutants exceeding environmental quality regulations, characterize the chemical quality of the pointer values or limit values of pollutants.
21. on the basis of the work carried out by the Agency of the underground ūdensobjekt the original characteristics and groundwater monitoring data, as well as to relevant pollutant annual mean concentrations of these pollutants and determine the difference between the results of the limit value monitoring site, ūdensobjekt the chemical quality of risk are assessed for each of the pollutants, which creates the risk that the underground ūdensobjekt will not achieve good chemical quality.
22. To enable the Agency to assess the underground ūdensobjekt for chemical quality, at least in the Act, regulations on requirements for surface water, ground water and monitoring of protected areas and the development of programmes for the monitoring of the chemical parameters laid down and the iron ion concentration measurement. Taking into account the specific ground or bottom object ūdensobjekt characteristics, all the chemical quality of representative indicators determine the background concentrations and, based on the monitoring data, calculates the chemical quality of the representative of the average value. If quality indicators are defined to characterize the environmental quality regulations, calculated at each monitoring station, the average value of the results obtained. Using these rules referred to in paragraph 5 of the initial characteristics of underground ūdensobjekt, the Agency shall determine for each risk ūdensobjekt and the Minister of Environment approved the list with all the pollutants limit values which describe ūdensobjekt as a risk ūdensobjekt. Limit values of pollutants shall be determined taking into account: these provisions 22.1 11 and 12 the risk referred to in paragraph ūdensobjekt, the additional characteristics of the scientific knowledge and experience in the field of toxicity and ecotoxicity, as well as information about the reasons that hamper existing or foreseeable in the groundwater as a drinking water source for use;
22.2. the origin of pollutants, the possible incidence in nature, and distribution trends of toxicity, persistence and bioaccumulation potential;
22.3. data quality assessment and other available information for a given ūdensobjekt.
23. If the underground ūdensobjekt in part fall within the territory of Latvia, in part in the territory of another State, including in the territory of a State which is not a Member State of the European Union or candidate country, these provisions referred to in point 22 of the pollutants limit values will be determined in collaboration with the national competent authorities.
24. in paragraph 22 of these rules that limit values of pollutants list review and amend the list in the following cases: 24.1. If monitoring shows that the underground ūdensobjekt is no longer at risk, due to the pollution, and with it the set limit values of pollutants can be removed from the list;
24.2. If, on the basis of the latest information and expert opinion, it is necessary to modify an existing limit values or set a different limit values of pollutants;
24.3. in order to protect human health and the environment, in addition to the provisions described in the paragraphs below 15.0 condition is required to include in the list again the limit values of pollutants that were deleted previously.
25. the Agency, in the river basin management plans for each risk ūdensobjekt include these rules 11 and 12, the information referred to in chemical assessment summary and information about the approved limit values of pollutants, changes in contaminant thresholds and link between the limit values and the observed background levels, as well as the environmental quality objectives and environmental quality standards and pollutant release information on toxicity, Ecotoxicity, persistence bioaccumulation potential, and spreading the trend.
IV. final question 26. Be declared unenforceable in the Cabinet of Ministers on 19 October 2004, Regulation No 857 "regulations on underground water resources and identifying quality criteria" (Latvian journal, 2004, nr. 168).
Informative reference to European Union directives, the regulations include provisions resulting from: 1) of the European Parliament and of the Council of 23 October 2000, Directive 2000/60/EC establishing a framework for Community action in the field of water policy;
2) of the European Parliament and of the Council of 12 December 2006, Directive 2006/118/EC on the protection of groundwater against pollution and deterioration.
Prime Minister i. Godmanis Environment Minister r. vējonis Editorial Note: the entry into force of the provisions by 30 January 2009.
